https://learn.microsoft.com/en-us/windows/win32/api/strsafe/nf-strsafe-stringcchvprintfa?redirectedfrom=MSDN
StringCchVPrintfA function (strsafe.h) - Win32 apps | Microsoft Learn
Writes formatted data to the specified string using a pointer to a list of arguments. (StringCchVPrintfA)
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